[INFO] fetching crate telegrust-histo 0.1.1...
[INFO] checking telegrust-histo-0.1.1 against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] extracting crate telegrust-histo 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate telegrust-histo 0.1.1 on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate telegrust-histo 0.1.1
[INFO] finished tweaking crates.io crate telegrust-histo 0.1.1
[INFO] tweaked toml for crates.io crate telegrust-histo 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate telegrust-histo 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded svg v0.7.2
[INFO] [stderr]   Downloaded plotlib v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 857c32012db861f0d619ae58ddd2c8f7ae80f3ca469794652e5bcaf583cc7f9e
[INFO] running `Command { std: "docker" "start" "-a" "857c32012db861f0d619ae58ddd2c8f7ae80f3ca469794652e5bcaf583cc7f9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "857c32012db861f0d619ae58ddd2c8f7ae80f3ca469794652e5bcaf583cc7f9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "857c32012db861f0d619ae58ddd2c8f7ae80f3ca469794652e5bcaf583cc7f9e", kill_on_drop: false }`
[INFO] [stdout] 857c32012db861f0d619ae58ddd2c8f7ae80f3ca469794652e5bcaf583cc7f9e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 71b225a4f8e5571aa14393f0b70dc481c449df0f2d1710a939a96b01671ce354
[INFO] running `Command { std: "docker" "start" "-a" "71b225a4f8e5571aa14393f0b70dc481c449df0f2d1710a939a96b01671ce354", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking object v0.22.0
[INFO] [stderr]     Checking svg v0.7.2
[INFO] [stderr]     Checking argparse v0.2.2
[INFO] [stderr]     Checking exitcode v1.1.2
[INFO] [stderr]     Checking thread_local v1.1.0
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking backtrace v0.3.55
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking plotlib v0.5.1
[INFO] [stderr]     Checking telegrust-histo v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `SystemTime`
[INFO] [stdout]  --> src/message.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::time::{SystemTime, UNIX_EPOCH, Duration};
[INFO] [stdout]   |                 ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SystemTime`
[INFO] [stdout]  --> src/message.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::time::{SystemTime, UNIX_EPOCH, Duration};
[INFO] [stdout]   |                 ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.45s
[INFO] running `Command { std: "docker" "inspect" "71b225a4f8e5571aa14393f0b70dc481c449df0f2d1710a939a96b01671ce354", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71b225a4f8e5571aa14393f0b70dc481c449df0f2d1710a939a96b01671ce354", kill_on_drop: false }`
[INFO] [stdout] 71b225a4f8e5571aa14393f0b70dc481c449df0f2d1710a939a96b01671ce354